wtf asm

[cooler@coolerlab asm]$ gcc -o test test.c -masm=intel
/tmp/ccpTHIx9.s: Assembler messages:
/tmp/ccpTHIx9.s:60: Error: junk `PTR [ebp+8]' after expression
/tmp/ccpTHIx9.s:60: Error: too many memory references for `mov'
/tmp/ccpTHIx9.s:61: Error: too many memory references for `mov'
[cooler@coolerlab asm]$ cat test.c
#include <stdio.h>

int Add(int x, int y);

int main()
{
 printf("%d \n",  add(2,3));
 return 0;
}

int Add(int x, int y)
{
 __asm__(
 ".intel_syntax noprefix\n"
 "mov eax,%1\n"
 "mov ebx,%2\n"
 "add eax,ebx\n"
 "mov %0,eax\n"
 ".att_syntax\n"
 : "=r"(x) : "a"(x), "b"(y)
 );
    return x;
}
[cooler@coolerlab asm]$